Question

Typically, one in six detergent packages is not properly packaged. In a sample, 10 pieces are randomly checked. How big is the Probability that (a) none, (b) more than 5 of the checked packages are not properly packaged?

66

likes
330 views

Answer to a math question Typically, one in six detergent packages is not properly packaged. In a sample, 10 pieces are randomly checked. How big is the Probability that (a) none, (b) more than 5 of the checked packages are not properly packaged?

Expert avatar
Hank
4.8
105 Answers
Wir können dieses Problem mithilfe der Binomialverteilung lösen. Die Formel für die Binomialverteilung ist gegeben durch:

P(X = k) = \binom{n}{k} \cdot p^k \cdot (1-p)^{n-k}

wobei:
- n die Anzahl der Versuche ist,
- k die Anzahl der Erfolge ist,
- p die Wahrscheinlichkeit eines Erfolges ist.

In diesem Fall ist n = 10 (Anzahl der überprüften Verpackungen) und p = \frac{1}{6} (Wahrscheinlichkeit, dass eine Verpackung nicht ordnungsgemäß verpackt ist).

(a) Die Wahrscheinlichkeit, dass keine der überprüften Verpackungen nicht ordnungsgemäß verpackt sind ist gegeben durch:

P(X = 0) = \binom{10}{0} \cdot \left(\frac{1}{6}\right)^0 \cdot \left(1-\frac{1}{6}\right)^{10-0}

P(X = 0) = 1 \cdot 1 \cdot \left(\frac{5}{6}\right)^{10}

P(X = 0) = \left(\frac{5}{6}\right)^{10} \approx 0.1615

Frequently asked questions (FAQs)
What is the equation of an ellipse centered at (h, k), with semi-major axis a and semi-minor axis b?
+
Math Question: Differentiate the function f(x) = ∫[0 to x] e^t dt and evaluate it at x = 3.
+
What is the derivative of f(g(x)) when f(x) = sin(x) and g(x) = x^2 - 3x + 5?
+
New questions in Mathematics
A normal random variable x has a mean of 50 and a standard deviation of 10. Would it be unusual to see the value x = 0? Explain your answer.
A software company incurs a cost of $50 per license sold plus $5,000 in fixed costs. How many licenses should you sell to minimize total costs?
A normally distributed population has a mean of 118 with a standard deviation of 18. What score separates the lowest 72% of the distribution from the rest of the scores?
90 divided by 40
Let I ⊂ R be a bounded and nonempty interval. Show that there are numbers a, b ∈ R with a ≤ b and I =[a,b] or I =[a,b) or I =(a,b] or I =(a,b)
Suppose X has a Poisson distribution, with a mean of 0.4. Determine the probability that x is at most 2.
Find the root of x^4-10x^ 5=0 using Newton's method, with a precision of the smallest positive root.
Perpetual annuities are a series of payments whose duration has no end. Explain how can we calculate them, if they have no end?
41/39 - 1/38
The equation of the straight line that passes through the coordinate point (2,5) and is parallel to the straight line with equation x 2y 9 = 0 is
What is 28 marks out of 56 as a percentage
Express the trigonometric form of the complex z = -1 + i.
17. A loan for $104259 is taken out for 10 years with an annual interest rate of 9.4%, compounded quarterly. What quarterly payment is required to pay the loan off in 10 years? Enter to the nearest cent (two decimals). Do not use $ signs or commas in the answer.
A 20-year old hopes to retire by age 65. To help with future expenses, they invest $6 500 today at an interest rate of 6.4% compounded annually. At age 65, what is the difference between the exact accumulated value and the approximate accumulated value (using the Rule of 72)?
The mean of 4 numbers is 5 and the mean of 3 different numbers is 12. What is the mean of the 7 numbers together? Produce an algebraic solution. Guess and check is acceptable.
4m - 3t + 7 = 16
For how long does the principal amount of €7,537 bring the same interest as the principal amount of €12,345 invested for 8 months? Interest calculation is simple and decursive.
-1/3x+15=18
Let A denote the set of all people who were alive in 2010. Let B denote the set of all real numbers. Let f assign, to each person in A, their weight during the year 2010. Is f a function? Explain in complete sentences.
f(x)= 9-x^2 find (f(x+h)-f(x) )/h